JXEGACEILE. G7 



sjiccimens probably entire ; clothed beneath with dense fulvous 

 pubescence, except that on the two apical segments, which is black. 



Ilab. South-Sea islands. 



18. Megachile diligens. 



Female. Length 4| linos. — Black ; the pubescence on the head and 

 thorax obscure pale fulvous, becoming cinereous on the motathorax 

 and on the face anteriorly ; the abdomen with ferruginous pubes- 

 cent fasciffi. The mandibles with four teeth, the two apical ones 

 acute, the others blimt ; the cheeks with long cinereous pubescence ; 

 the legs with a little short black pubescence above, on the tarsi 

 beneath it is reddish brown ; the claws ferruginous, tipped with 

 black ; wings subhyaline, the nervures black. Abdomen cordate, 

 and densely clothed with bright ferruginous pubescence beneath. 



Male. Rather smaller than the female, but very closely resembling 

 it. Differs in having the clypeus densely covered with very pale 

 fulvous pubescence, the anterior tarsi fringed behind with pale 

 pubescence, the fifth and sixth segments of the abdomen densely 

 clothed above with short ferruginous pubescence, the sixth seg- 

 ment deei^ly cmarginate, the exterior angles dentiform. 



Hah. Honolulu. 



The Eev. T. Blackburn states that this species is not rare; it 

 forms nests of leaves of a species of Acacia, rolled up into cylindrical 

 cells, which are joined one at the end of another to the length of 

 several inches, and are placed in crevices of masonry. 



19. Megachile ardens. 



Female. Length 7 lines. — Black, the abdomen clothed with bright 

 rufo-fulvous pubescence. The face, above the antennae, with black 

 pubescence, the vertex with a thin short fulvous pubescence, the 

 fringe on the cheeks of the same colour ; the clypeus strongly punc- 

 tured, its anterior margin emarginate, the lateral angles of the 

 emargination acute and subdentato. The thorax with a short 

 fulvous pubescence above, on the sides and also beneath it is longer 

 and paler ; the anterior tarsi, and the intermediate and posterior 

 pair inside, clothed with bright fulvo-ferruginous pubescence; 

 wings fusco-hyalino, darkest at their apex, with the nervurea 

 black. 

 Hah. Ceylon. 



There are four or five species resembling this ; but the present 

 species is distinguished from them by the short velvety fulvous pu- 

 bescence of the thorax, and by the form of the clypeus. 



20. Megachile penetrata. 



Female. Length 7| lines.— Black ; the general pubescence pale ful- 



F 2 



